# GPT-6.1 Terra

91 Hacker News commenters recommended GPT-6.1 Terra and 65 criticized it, November 2025 to November 2026. It was recommended in 7 of 13 months.

**Verdict:** Recommended as a cheap, fast workhorse for routine coding and agentic tasks. Critics say it still makes basic mistakes.

## Why people recommend it

- Low cost for good results (6 comments): "GPT-6.1 Terra is an AWESOME release for anyone using the API in agentic production applications where cost matters." ([source](https://news.ycombinator.com/item?id=50249967)) "Cheap and affordable. Dispatching proper tasks to these models can save you a huge % of your quota." ([source](https://news.ycombinator.com/item?id=50248853)) "The reduction in price for the Terra model series has been particularly helpful for us." ([source](https://news.ycombinator.com/item?id=49260724))
- Reliable workhorse for routine tasks (3 comments): "Terra had the "workhorse" quality where it could do these changes in bulk and follow directions without being too 'smart'" ([source](https://news.ycombinator.com/item?id=49806117)) "I actually found Terra to be a very good workhorse model on none-to-medium reasoning" ([source](https://news.ycombinator.com/item?id=49807464)) "I also get good mileage out of Terra when I need a diligent workhorse" ([source](https://news.ycombinator.com/item?id=49807033))
- Faster than comparable models (2 comments): "Terra is probably better than Astra and Sol at technical communication, similar on vision and computer use (but much faster!), and a bit worse on most other things." ([source](https://news.ycombinator.com/item?id=50249160)) "Sometimes this tier is faster, and getting a good enough result in a few seconds instead of a better result in ~15-30 seconds is a meaningful result." ([source](https://news.ycombinator.com/item?id=50248818))
- Cheaper planning split with Sol (2 comments): "I've saved on $$ on the tasks where I split planning+execution into Sol+Terra" ([source](https://news.ycombinator.com/item?id=49573290)) "Sol to write the brief and Terra to implement it, works pretty well" ([source](https://news.ycombinator.com/item?id=49047249))

## What people warn about

- Makes basic mistakes and serious bugs (3 comments): "They all work, they all are "good", they all are both "smart" and commit incredible basic mistakes a fair amount of times." ([source](https://news.ycombinator.com/item?id=49531054)) "All non-trivial code terra has generated for me has had at least one serious bug in it." ([source](https://news.ycombinator.com/item?id=49342602)) "Terra did such idiotic crap to my flashcards app that I stopped using it for anything after that." ([source](https://news.ycombinator.com/item?id=49811393))
- Too many confusing model versions (3 comments): "You know they’ve run out of ideas when they’re releasing this many versions of the same base model." ([source](https://news.ycombinator.com/item?id=50249853)) "The obnoxious/confusing thing is that models are released individually rather than as a family." ([source](https://news.ycombinator.com/item?id=50249599)) "They have too many models, and too many effort levels, it starts to feel like what to chose." ([source](https://news.ycombinator.com/item?id=50248655))
- Not clearly better than alternatives (3 comments): "No testing I've done has shown them to have a niche where there isn't a cheaper-with-equal-results or more-performant-at-same-cost option." ([source](https://news.ycombinator.com/item?id=50255736)) "Every test I've done with Sonnet or Tera has been more expensive than just using their big brothers" ([source](https://news.ycombinator.com/item?id=50021801)) "It wasn't really used enough and it sat in an awkward middle space between luna and sol" ([source](https://news.ycombinator.com/item?id=49805918))
- Inconsistent availability and releases (2 comments): "But then things go confusing, they released Sol-6.1 which sometimes is superior to Astra, and discontinued Terra" ([source](https://news.ycombinator.com/item?id=50248551)) "The inconsistency wrt their availability, starting with day 1 of a new model version, is precisely the problem." ([source](https://news.ycombinator.com/item?id=50261485))

## Alternatives hackers recommend

- [Claude Opus](https://hackerapproved.com/p/claude-opus.md): 3331 recommend
- [OpenAI GPT](https://hackerapproved.com/p/gpt-5-5.md): 1205 recommend
- [Claude Sonnet](https://hackerapproved.com/p/claude-sonnet.md): 854 recommend
- [DeepSeek V4 Flash](https://hackerapproved.com/p/deepseek-v4-flash.md): 828 recommend
- [Fable](https://hackerapproved.com/p/fable.md): 823 recommend

## Cite as

Hacker Approved, "GPT-6.1 Terra", https://hackerapproved.com/p/gpt-6-1-terra/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).